Oxidative Coupling of three different arenes and a thiophene derivative with various arylboronic acids with Pd(OAc)(2) and the commercially available 2,2,6,6-tetramethylpiperidine-N-oxyl radical (TEMPO) as an oxidant are reported. A 2-pyridyl group Oil the Substrates serves as ortho-directing group to mediate the C-H arylation. Mechanistic studies are provided.